Drill or pump rod extractor.



PATENTED NOV. 29, 1904.

B. P. DAY.

DRILL 0R PUMP ROD EXTRAGTOR.

APPLICATION FILED APR. 30, 1904.

N0 MODEL' g;ses

Miran STATES EZRA FRANKLIN DAY,

Patented November 29, 190 1.

or Risnvesmv, OHIO.

DRILL. OR PUMP ROD EXTRACTOR.

SPECIFICATION forming part of Letters Patent-No. 776,221, dated November 29, 1904.

Appliea+ 0n filed April 30, 1904.

To all whom 1125 may concern:

Be it known that I, EZRA FRANKLIN DAY, a citizen of the United States, residing at Risingsun, in the county of Wood and State of Ohio, have invented a new and useful Drill or Pump Rod Extractor, of which the following is a specification.

This invention relates. to implements for extracting broken drill or pump rods from oil and similar wells, and has for its object to simplify and improve the construction and provide an implement of this character which is inexpensive in construction, certain in its action, and automatically adaptable to the drill or pump rod to be grappled.

With these and other objects in view, which will appear as the nature of the invention is better understood, the same consists in certain novel features of construction, as hereinafter fully described and claimed.

In the accompanying drawings, forming a part of this specification, and in which corresponding parts are denoted by like designating characters, is illustrated the preferred form of the embodiment of the invention capable of carrying the same into practical operatiori, it being understood that the invention is not necessarily limited thereto, as various changes in the shape, proportions, and general assemblage of the parts may be resorted to without departing from the principle of the invention or sacrificing any of its advantages, and the right is therefore reserved of making all the changes and modifications which fairly fall within the scope of the invention and the claim made therefor.

1n the drawings thus employed, Figure l is a sectional view of a well with a broken drillrod disposed therein and with the improved grappling implement applied. Fig. 2 is a transverse section, enlarged, on the line 2 2 of Fig. 1.

The well-tubing 10 and drill or pump rod 11 are of the usual form, the latter arranged in sections coupled at the ends by laterallyextending sleeves or collars 12. The tubing 10 is also formed in sections united by outside couplings 13.

The improved grappling implement consists of a stock or shank 14:, having one end Serial a. 205,816. (No model.)

threaded to receive a pipe-coupling 15, by which a pipe-section 16 may be connected thereto to form a handle member capable of indefinite extension. At its lower end the stock 1 1 is formed with a laterally-extending curved integral hook 17, with the terminal 18 chisel-shaped, as shown. The recess 18, in eluded between the inner walls of the hook, is approximately circular, and the entrance thereto between the chisel-shaped point 18 and the opposing point 18", formed by the body of the hook, is somewhat contracted, although slightly greater in Width than the body of the rod 11, but less than the coupling 12, so that when the hook embraces the rod below the coupling, as in Fig. 1, the latter bears upon the upper face of the hook and provides means for lifting the broken rod from the well. The heel 19 of the hook extends laterally for a short distance at the opposite side of the rod and is rounded to form a bearing or fulcrum to facilitate the action by bearing against the inner face of the tube 10 as the implement is rotated or otherwise moved. v

When the drill or pump rod is broken, the jagged broken end 20 frequently catches in the sides of the tube 10 or upon the slight protuberanees or recesses at the couplings 13 and causes great annoyance and delay and frequently results in the breakage of the grappling implements heretofore manufactured. \Vith the implement herein shown and described all tendency of the jagged broken end of the rod to catch upon the inner face of the well-tube is prevented, as the first action of the implement when inserted and rotated is to cause the chisel-shaped terminal 18 to pass between the broken rod and the tube 10, against which it leans, and draw the rod into the hook 17 and away from the tube lO-before it begins to draw it upward and holds the rod centrally of the well-tube and away from its sides during the whole time of the upward passage. This is a very important feature of the invention and adds materially to its value and efficiency. With an implement thus constructed when a rod breaks, the implement, with the requisite number of pipe-sections 16 connected thereto to enable it t9 reach the first coupling 12 below the break, is lowered into the well until the operator feels it strike the broken rod. Then by a few turns and vertical movements in both directions the hook 17 is disposed beneath the uppermost of the couplings 12 and the implement rotated to cause the chisel-edged terminal to pass around the rod and draw it away from the tube and into the hook and ready to be drawn upward, carrying the rod with it. In the movements necessary to cause the hook to engage the rod the lateral extension 19 performs an important function by causing the hook to roll to the opposite side or toward the broken rod, thus materially facilitating the action and rendering it more certain and positive.

The stock or shank and the hook 17, together with its extension 19, will preferably be forged in one piece of steel, and the hook will be varied in size to adapt it to differentsized well-tubes.

Having thus described the invention, what is claimed is A tool of the class described comprising a body or hook having an approximately circular recess, opposing chisel-shaped points, and an entrance to said recess between said chiselshaped points said entrance being of less width than the diameter of the recess; and a stock connected with said hook at a distance from the heel thereof.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

EZRA FRANKLIN DAY.

itnesses:

CHARLES E. TRUE, N. P. l/VIREBAUGT. 

